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Image of the Week

The latest piece of the puzzle to arrive: Europe's sector #4

19 May 2025

Only three more to go! With the arrival of sector #4 on 9 May 2025, there are now six ITER vacuum vessel sectors on site. Nine are needed to form the complete plasma chamber.

Sector #4 is delivered to ITER early in the morning on 9 May 2025.

These days, it's all about vacuum vessel sectors. Sectors arriving from abroad, sectors finalized as modules ready for the tokamak pit, sectors transferred between tools ... everywhere you look there are spectacular handling, transfer and construction activities underway at ITER related to the 5,000-tonne plasma chamber that will be critical to ITER science—the vacuum vessel. 

Activities that had been put on pause during the repair campaign of critical components have been back underway since September 2024 and the assembly teams at ITER are maintaining the pace—even performing slightly ahead of schedule.

Vacuum vessel sector #4 has been transferred to a storage area inside the former Cryostat Workshop. It is still wrapped in a tarpaulin, but its protective housing has been removed (the housing is visible in the background).

For the European Domestic Agency Fusion for Energy, which delivered sector #5 in October, the delivery of sector #4 last week is the second of five expected. 

Watch a video from Fusion for Energy on the completion of sector #4 that celebrates the many years of development behind this achievement and the successful collaboration of European contractors.

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